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Merge branch 'tb/pseudo-merge-reachability-bitmap'

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The pseudo-merge reachability bitmap to help more efficient storage
of the reachability bitmap in a repository with too many refs has
been added.

* tb/pseudo-merge-reachability-bitmap: (26 commits)
  pack-bitmap.c: ensure pseudo-merge offset reads are bounded
  Documentation/technical/bitmap-format.txt: add missing position table
  t/perf: implement performance tests for pseudo-merge bitmaps
  pseudo-merge: implement support for finding existing merges
  ewah: `bitmap_equals_ewah()`
  pack-bitmap: extra trace2 information
  pack-bitmap.c: use pseudo-merges during traversal
  t/test-lib-functions.sh: support `--notick` in `test_commit_bulk()`
  pack-bitmap: implement test helpers for pseudo-merge
  ewah: implement `ewah_bitmap_popcount()`
  pseudo-merge: implement support for reading pseudo-merge commits
  pack-bitmap.c: read pseudo-merge extension
  pseudo-merge: scaffolding for reads
  pack-bitmap: extract `read_bitmap()` function
  pack-bitmap-write.c: write pseudo-merge table
  pseudo-merge: implement support for selecting pseudo-merge commits
  config: introduce `git_config_double()`
  pack-bitmap: make `bitmap_writer_push_bitmapped_commit()` public
  pack-bitmap: implement `bitmap_writer_has_bitmapped_object_id()`
  pack-bitmap-write: support storing pseudo-merge commits
  ...
This commit is contained in:
Junio C Hamano
2024-06-24 16:39:13 -07:00
parent 9005149a4a a83e21de6b
commit ffa47b75cf
24 changed files with 2605 additions and 55 deletions
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34
t/helper/test-bitmap.c
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@ -13,21 +13,41 @@ static int bitmap_dump_hashes(void)
return test_bitmap_hashes(the_repository);
}
static int bitmap_dump_pseudo_merges(void)
{
return test_bitmap_pseudo_merges(the_repository);
}
static int bitmap_dump_pseudo_merge_commits(uint32_t n)
{
return test_bitmap_pseudo_merge_commits(the_repository, n);
}
static int bitmap_dump_pseudo_merge_objects(uint32_t n)
{
return test_bitmap_pseudo_merge_objects(the_repository, n);
}
int cmd__bitmap(int argc, const char **argv)
{
setup_git_directory();
if (argc != 2)
goto usage;
if (!strcmp(argv[1], "list-commits"))
if (argc == 2 && !strcmp(argv[1], "list-commits"))
return bitmap_list_commits();
if (!strcmp(argv[1], "dump-hashes"))
if (argc == 2 && !strcmp(argv[1], "dump-hashes"))
return bitmap_dump_hashes();
if (argc == 2 && !strcmp(argv[1], "dump-pseudo-merges"))
return bitmap_dump_pseudo_merges();
if (argc == 3 && !strcmp(argv[1], "dump-pseudo-merge-commits"))
return bitmap_dump_pseudo_merge_commits(atoi(argv[2]));
if (argc == 3 && !strcmp(argv[1], "dump-pseudo-merge-objects"))
return bitmap_dump_pseudo_merge_objects(atoi(argv[2]));
usage:
usage("\ttest-tool bitmap list-commits\n"
"\ttest-tool bitmap dump-hashes");
"\ttest-tool bitmap dump-hashes\n"
"\ttest-tool bitmap dump-pseudo-merges\n"
"\ttest-tool bitmap dump-pseudo-merge-commits <n>\n"
"\ttest-tool bitmap dump-pseudo-merge-objects <n>");
return -1;
}